oj.uz

Submission #167591

# Submission time Handle Problem Language Result Execution time Memory
167591 2019-12-09T04:25:34 Z Rakhmand Bootfall (IZhO17_bootfall) C++14
13 / 100
 1000 ms 2552 KB 
//
//  ROIGold.cpp
//  Main calisma
//
//  Created by Rakhman on 05/02/2019.
//  Copyright © 2019 Rakhman. All rights reserved.
//
 
#include <cstring>
#include <vector>
#include <list>
#include <map>
#include <set>
#include <deque>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <queue>
#include <cmath>
#include <cstdlib>
#include <ctime>
#include <cassert>
#include <iterator>
 
#define ios ios_base::sync_with_stdio(0), cout.tie(0), cin.tie(0);
#define S second
#define F first
#define pb push_back
#define nl '\n'
#define NL cout << '\n';
#define EX exit(0)
#define all(s) s.begin(), s.end()
#define no_answer return cout << 0, 0;
#define FOR(i, start, finish, k) for(int i = start; i <= finish; i += k)
 
const int MXN = 4e5 + 200;
const long long MNN = 4e2 + 200;
const long long MOD = 1e9 + 7;
const long long INF = 1e18;
const int OO = 1e9 + 500;
 
typedef long long llong;
typedef unsigned long long ullong;
 
using namespace std;
 
int n, k, a[MXN], cnt;
bitset<126000> pr[510], su[510];
int sum = 0;
vector<int> v;
 
bool isOk(int k, int pos){
    if(pos <= n / 2){
        bitset<126000> x = su[pos + 1];
        for(int i = 1; i <= pos - 1; i++){
            x |= x << a[i];
        }
        if(x[(sum + k - a[pos]) / 2] == 1){
            return 1;
        }else{
            return 0;
        }
    }else{
        bitset<126000> x = pr[pos - 1];
        for(int i = pos + 1; i <= n; i ++){
            x |= x << a[i];
        }
        if(x[(sum + k - a[pos]) / 2] == 1){
            return 1;
        }else{
            return 0;
        }
    }
}

int main () {
    ios;
    cin >> n;
    for(int i = 1; i <= n; i++){
        cin >> a[i];
        sum += a[i];
        cnt += a[i] % 2;
    }
    if(sum % 2 == 1) {
        no_answer;
    }
    if(cnt != 0 && cnt != n){
        no_answer;
    }
    pr[0][0] = 1;
    for(int i = 1; i <= n; i++){
        pr[i] = pr[i - 1];
        pr[i] |= pr[i] << a[i];
    }
    if(pr[n][sum / 2] == 0){
        no_answer;
    }
    su[n + 1][0] = 1;
    for(int i = n; i >= 1; i--){
        su[i] = su[i + 1];
        su[i] |= su[i] << a[i];
    }
    for(int i = a[1] % 2; i <= sum; i += 2){
        bool ok = 1;
        for(int j = 1; j <= n; j++){
            if(isOk(i, j) == 0){
                ok = 0;
                break;
            }
        }
        if(ok == 1) v.pb(i);
    }
    cout << v.size() << nl;
    for(int i = 0; i < v.size(); i++){
        cout << v[i] << ' ';
    }
}

Compilation message

bootfall.cpp: In function 'int main()':
bootfall.cpp:121:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = 0; i < v.size(); i++){
                    ~~^~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 632 KB Output is correct
2 Correct 3 ms 632 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 504 KB Output is correct
5 Correct 35 ms 760 KB Output is correct
6 Correct 3 ms 632 KB Output is correct
7 Correct 3 ms 632 KB Output is correct
8 Correct 39 ms 888 KB Output is correct
9 Correct 2 ms 376 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 632 KB Output is correct
2 Correct 3 ms 632 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 504 KB Output is correct
5 Correct 35 ms 760 KB Output is correct
6 Correct 3 ms 632 KB Output is correct
7 Correct 3 ms 632 KB Output is correct
8 Correct 39 ms 888 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 22 ms 1400 KB Output is correct
11 Correct 153 ms 1400 KB Output is correct
12 Correct 4 ms 1400 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 151 ms 1476 KB Output is correct
15 Correct 115 ms 1276 KB Output is correct
16 Correct 153 ms 1420 KB Output is correct
17 Correct 39 ms 1016 KB Output is correct
18 Correct 94 ms 1144 KB Output is correct
19 Correct 86 ms 1372 KB Output is correct
20 Correct 23 ms 1400 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 632 KB Output is correct
2 Correct 3 ms 632 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 504 KB Output is correct
5 Correct 35 ms 760 KB Output is correct
6 Correct 3 ms 632 KB Output is correct
7 Correct 3 ms 632 KB Output is correct
8 Correct 39 ms 888 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 22 ms 1400 KB Output is correct
11 Correct 153 ms 1400 KB Output is correct
12 Correct 4 ms 1400 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 151 ms 1476 KB Output is correct
15 Correct 115 ms 1276 KB Output is correct
16 Correct 153 ms 1420 KB Output is correct
17 Correct 39 ms 1016 KB Output is correct
18 Correct 94 ms 1144 KB Output is correct
19 Correct 86 ms 1372 KB Output is correct
20 Correct 23 ms 1400 KB Output is correct
21 Execution timed out 1080 ms 2552 KB Time limit exceeded
22 Halted 0 ms 0 KB -

Subtask #4
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 632 KB Output is correct
2 Correct 3 ms 632 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 504 KB Output is correct
5 Correct 35 ms 760 KB Output is correct
6 Correct 3 ms 632 KB Output is correct
7 Correct 3 ms 632 KB Output is correct
8 Correct 39 ms 888 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 22 ms 1400 KB Output is correct
11 Correct 153 ms 1400 KB Output is correct
12 Correct 4 ms 1400 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 151 ms 1476 KB Output is correct
15 Correct 115 ms 1276 KB Output is correct
16 Correct 153 ms 1420 KB Output is correct
17 Correct 39 ms 1016 KB Output is correct
18 Correct 94 ms 1144 KB Output is correct
19 Correct 86 ms 1372 KB Output is correct
20 Correct 23 ms 1400 KB Output is correct
21 Execution timed out 1080 ms 2552 KB Time limit exceeded
22 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 632 KB Output is correct
2 Correct 3 ms 632 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 504 KB Output is correct
5 Correct 35 ms 760 KB Output is correct
6 Correct 3 ms 632 KB Output is correct
7 Correct 3 ms 632 KB Output is correct
8 Correct 39 ms 888 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 22 ms 1400 KB Output is correct
11 Correct 153 ms 1400 KB Output is correct
12 Correct 4 ms 1400 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 151 ms 1476 KB Output is correct
15 Correct 115 ms 1276 KB Output is correct
16 Correct 153 ms 1420 KB Output is correct
17 Correct 39 ms 1016 KB Output is correct
18 Correct 94 ms 1144 KB Output is correct
19 Correct 86 ms 1372 KB Output is correct
20 Correct 23 ms 1400 KB Output is correct
21 Execution timed out 1080 ms 2552 KB Time limit exceeded
22 Halted 0 ms 0 KB -

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 632 KB Output is correct
2 Correct 3 ms 632 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 504 KB Output is correct
5 Correct 35 ms 760 KB Output is correct
6 Correct 3 ms 632 KB Output is correct
7 Correct 3 ms 632 KB Output is correct
8 Correct 39 ms 888 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 22 ms 1400 KB Output is correct
11 Correct 153 ms 1400 KB Output is correct
12 Correct 4 ms 1400 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 151 ms 1476 KB Output is correct
15 Correct 115 ms 1276 KB Output is correct
16 Correct 153 ms 1420 KB Output is correct
17 Correct 39 ms 1016 KB Output is correct
18 Correct 94 ms 1144 KB Output is correct
19 Correct 86 ms 1372 KB Output is correct
20 Correct 23 ms 1400 KB Output is correct
21 Execution timed out 1080 ms 2552 KB Time limit exceeded
22 Halted 0 ms 0 KB -